Finding the Fourth Proportional to 823,575.08, 1,135,735.11 and 642,220.84
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Solution
The fourth proportional to 823,575.08, 1,135,735.11 and 642,220.84 is: 885,642.09
Step by Step Solution
- Step 1: Write the proportion equation
823,575.08 : 1,135,735.11 = 642,220.84 : x - Step 2: Convert to fraction form
823,575.08/1,135,735.11 = 642,220.84/x - Step 3: Cross multiply
823,575.08x = 1,135,735.11 × 642,220.84 - Step 4: Simplify right side
823,575.08x = 729,392,756,361.69 - Step 5: Solve for x
x = 729,392,756,361.69/823,575.08 - Step 6: Final answer
x = 885,642.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.